Update the flake8 version.

it has been removed from the original repo.

We where using a very very old version so we where missing some features like global variable checking

Author: ToveRumar

.pre-commit-config.yaml

@@ -14,8 +14,11 @@ repos:
     -   id: detect-private-key
     -   id: double-quote-string-fixer
     -   id: end-of-file-fixer
-    -   id: flake8
     -   id: requirements-txt-fixer
+-   repo: https://github.com/PyCQA/flake8
+    rev: 16f5f28a384f0781bebb37a08aa45e65b9526c50
+    hooks:
+    -   id: flake8
 -   repo: https://github.com/asottile/reorder_python_imports
     rev: ab609b9b982729dfc287b4e75963c0c4de254a31
     hooks: